Answer:
The effect of the angle between force and displacement on work.
Explanation:
When the angle between the force and displacement = zero , The work done is maximum when the direction of force is the same as the direction of displacement , such as a person pulling an object through a certain distance .
Hope that this helps you and have a great day :)
Answer:
i know the first one.
Explanation:
the distance from earth in light years is 6 trillion miles.
Answer:
4.D.all of them are correct
5. B.Making observation
Well it's a volcano that hasn't erupted. except the 1980 eruption of Mount St Helen. They're exctint, Scientist believe that it will never erupt again
Answer:
K = 0.076 J
Explanation:
The height of the target, h = 0.860 m
The mass of the steel ball, m = 0.0120 kg
Distance moved, d = 1.50 m
We need to find the kinetic energy (in joules) of the target ball just after it is struck. Let t is the time taken by the ball to reach the ground.
Put all the values,
The velocity of the ball is :
The kinetic energy of the ball is :
So, the required kinetic energy is 0.076 J.